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Filename Latest commit message Latest commit date
Finn Thain 091c1715f9 net/sonic: Add mutual exclusion for accessing shared state
commit 865ad2f2201dc18685ba2686f13217f8b3a9c52c upstream.

The netif_stop_queue() call in sonic_send_packet() races with the
netif_wake_queue() call in sonic_interrupt(). This causes issues
like "NETDEV WATCHDOG: eth0 (macsonic): transmit queue 0 timed out".
Fix this by disabling interrupts when accessing tx_skb[] and next_tx.
Update a comment to clarify the synchronization properties.

Fixes: efcce83936 ("[PATCH] macsonic/jazzsonic network drivers update")
Tested-by: Stan Johnson <userm57@yahoo.com>
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-29 16:45:31 +01:00
arch powerpc/xive: Discard ESB load value when interrupt is invalid 2020-01-29 16:45:26 +01:00
block
certs
crypto
Documentation
drivers net/sonic: Add mutual exclusion for accessing shared state 2020-01-29 16:45:31 +01:00
fs readdir: be more conservative with directory entry names 2020-01-29 16:45:31 +01:00
include tracing: xen: Ordered comparison of function pointers 2020-01-29 16:45:30 +01:00
init
ipc
kernel tracing: Fix histogram code when expression has same var as value 2020-01-29 16:45:26 +01:00
lib lib: Reduce user_access_begin() boundaries in strncpy_from_user() and strnlen_user() 2020-01-29 16:45:29 +01:00
LICENSES
mm
net net, sk_msg: Don't check if sock is locked when tearing down psock 2020-01-29 16:45:31 +01:00
samples
scripts ARM: 8950/1: ftrace/recordmcount: filter relocation types 2020-01-29 16:45:27 +01:00
security
sound
tools
usr
virt
.clang-format
.cocciconfig
.get_maintainer.ignore
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COPYING
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Makefile Linux 5.4.15 2020-01-26 10:01:09 +01:00
README

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.